WHAT IS INFRA RED THERMOMETER AND HOW IT WORKS

INFRA RED THERMOMETER ..HOW IT WORKS

Introduction of Thermometers

A thermometer is a device that measures temperature of an object and the degree of its hotness or its degree of coldness level

Types of Thermometers
Medical Thermometer
Non-Medical Thermometer

Different Types of Medical Thermometer

Mercury thermometer

In this thermometer Mercury is used in a closed glass tube to get the level of temperature of the patient

Digital thermometer
Digital thermometers work by using heat sensors that determine body temperature.

 

Oral thermometer

These thermometers are used by doctors for getting the mouth cavity temperature.

Ear thermometer

These thermometers measure the temperature inside the ear canal through infrared ray technology.

Forehead thermometer

Forehead thermometers use infrared sensors to measure the temperature of the skin and blood arteries in forehead of a person

App-based thermometer

These thermometers are attached to an mobile app

Pacifier thermometer

It is an easy way to record temperature of babies who use pacifiers.

Different Types of Non-Medical Thermometer

Laboratory thermometer

Digital thermometer
Infrared ear thermometer
Mercury thermometer
Alcohol in glass thermometer

Constant pressure gas thermometer
Constant volume thermometer

Platinum resistance thermometer

Thermocouple thermometer

Pyrometer thermometer

What is IR Thermometer

They use infrared rays to read the temperature of a person or an object from a certain distance and display the number in just a few seconds.

Different Names of IR Thermometers

infrared thermometer

laser thermometers 

non-contact thermometers 
temperature guns

What is Infra Red

Infrared radiation is a type of radiation energy. The most common sources of Infrared Radiation are the sun and fire.
This is invisible to human eyes but that we feel it as heat
All objects in the universe emit some level of IR radiation and IR Thermometer reads the level of the heat coming out from that object. 

Technology
Infrared thermometers employ a lens to focus the infrared light emitting from the object onto a detector known as a thermopile. The thermopile is nothing but thermocouples connected in series or parallel. When the infrared radiation falls on the thermopile surface, it gets absorbed and converts into heat.

Principle

Infrared thermometers work based on a phenomenon called black body radiation. Anything at a temperature above absolute zero has molecules inside of it moving around. The higher the temperature, the faster the molecules move. As they move, the molecules emit infrared radiation--a type of electromagnetic radiation below the visible spectrum of light. As they get hotter, they emit more infrared, and even start to emit visible light. That is why heated metal can glow red or even white. Infrared thermometers detect and measure this radiation.

Size

152mm x 113mm x 46mm

Cost
Rupees 1000 to 5000